Regular-season careers from the StatVault encyclopedia — the same tables as each player's profile.
| Jack Aker | Stat | Joe Hesketh |
|---|---|---|
| 11 | Seasons | 11 |
| 21.3 | Career VAL | 18.8 |
| 6.6 (1966) | Peak-season VAL | 7.3 (1985) |
| 1 | Black ink (league-leading seasons) | — |
| 2 | Gray ink (top-10 finishes) | — |
VAL is Value Above League — regular-season production measured against the league at the same position group (MLB VAL board). Black and gray ink count seasons from 1950 on.
| Jack Aker | Stat | Joe Hesketh |
|---|---|---|
| Career | ||
| 496 | Games | 340 |
| Batting | ||
| 7 | Hits | 6 |
| 4 | RBI | 2 |
| 3 | Runs | 2 |
| 1 | Walks | 10 |
| .076 | Batting avg | .070 |
| .096 | ||
| On-base % |
|---|
| .167 |
| .098 | Slugging % | .070 |
|---|
| -46 | OPS+ | -32 |
|---|
| Pitching | ||
|---|---|---|
| 47 | Wins | 60 |
| 45 | Losses | 47 |
| 123 | Saves | 21 |
| 746.0 | Innings pitched | 961.2 |
| 404 | Strikeouts (pitching) | 726 |
| 3.28 | ERA | 3.78 |
| 1.28 | WHIP | 1.38 |
| 107 | ERA+ | 104 |
| Age | Jack Aker | Joe Hesketh |
|---|---|---|
| 24 | 1.7 | — |
| 25 | 6.6 | 2.3 |
| 26 | 0.1 | 7.3 |
| 27 | 0 | 0 |
| 28 | 2.5 | — |
| 29 | 4.6 | 2.5 |
| 30 | 1.6 | 0 |
| 31 | 2.3 | 0 |
| 32 | 0.8 | 3.4 |
| 33 | 1.1 | 0 |
| 34 | — | 0.1 |
| 35 | — | 3.2 |